Search for χ±1χ02→1ℓ+h(bb¯) + MET with Atlas at LHC Run 2

Abstract : The LHC 8 TeV Run 1 came out with a negative outcome for C1 N2 searches and exclusion limits of mC1,N2> 250 GeV for a massless LSP were set. Taking advantage of the increase in the center-of-mass energy and the luminosity compared with Run 1, we’re searching for C1N2 → 1 lep + h0(bb) + MET within ATLAS at LHC 13 TeV Run 2. In line with the b-jets in the final state, my ATLAS authorship project is on the b-jet identification. We studied the impact of several simulated scenarios for pixel dead modules, inspired from 2016 data quality flags, on overall b-tagging performance. In fact the pixel modules play a crucial role in tracks reconstruction and vertexing, hence it highly affect the b-jets identification and it is necessary to quantify the loss in performance for such scenarios. On the phenomenology side, we’re developing a new version of the SuSy Spectrum calculator “Suspect3” using the inverted bottom-up procedure from physical masses to constraint SUSY parameters in the Higgs and stop sectors.
Type de document :
Communication dans un congrès
Journées de Rencontre des Jeunes Chercheurs 2016, Dec 2016, La Pommeraie, France. 〈https://jrjc2016.sciencesconf.org/〉
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http://hal.in2p3.fr/in2p3-01416125
Contributeur : Danielle Cristofol <>
Soumis le : mercredi 14 décembre 2016 - 09:43:45
Dernière modification le : jeudi 18 janvier 2018 - 01:55:02

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  • HAL Id : in2p3-01416125, version 1

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R. El. Kosseifi. Search for χ±1χ02→1ℓ+h(bb¯) + MET with Atlas at LHC Run 2 . Journées de Rencontre des Jeunes Chercheurs 2016, Dec 2016, La Pommeraie, France. 〈https://jrjc2016.sciencesconf.org/〉. 〈in2p3-01416125〉

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